Fu, J. ., Zhong, X. ., Li, D., Ge, Y., & Zhang, X. . (2023). THE VALUE OF NIPT COMBINED WITH SERUM CELL-FREE DNA, ESTRIOL, AFP, AND b-HCG LEVELS IN THE RECOGNITION OF TRISOMY 21 AND 18 IN THE SECOND TRIMESTER. Journal of Medical Biochemistry, 42(4), 574-581. https://doi.org/10.5937/jomb0-33027